EX-99.77K CHNG ACCNT 3 extopinion.txt December 7, 2005 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We have read the statements made by SEI Institutional International Trust (copy attached), which we understand will be filed with the Commission, pursuant to Item 77K of Form N-SAR dated December 7, 2005. We agree with the statements concerning our Firm in such Item 77K. Yours very truly, PricewaterhouseC oopers LLP